Metric to 3AN and 4AN Aluminum Adapter Fittings

Aluminum Adapters for Moderate-Pressure Systems

These adapter fittings mate your 3AN or 4AN hose to a metric port. The AN end is male on all of these adapters.

Concave points inward at the end of the threads.
Convex points outward at the end of the threads.
A male fitting with a concave seat will mate to a female fitting with a convex seat.

Note: These aluminum fittings are appropriate for use in moderate-pressure systems (up to 200 psi) such as oil pressure gauge lines. Brake systems should use our Metric to 3AN and 4AN Steel Brake Adapters.